Bell Work: Key Word Prediction

1
Bell Work Key Word Prediction
Use 12 of the words below to assemble a
story/paragraph that predicts what the clip is
about Remember, you can try to be accurate or
creative or both!!
Sahara Eliminate Dunes Space Hundreds Stran
ge United States Sandstorms 5,000
meters Agent Armored Bombardment 5,000
Years Escape Egypt Blast Chiseled Lumps
Pyramids Namibia Relentless
(540 1140)
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The Sahara andThe Sahel

• Living in the wind, sand, and heat of a harsh
  desert

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The Sahara

• The Sahara is the worlds largest desert.
• It is very hot and very dry
• Fun Fact The worlds highest known daytime
  temperature, 136ºF, was recorded in the Sahara in
  1922.
• Trade winds blowing across North Africa work to
  keep the region dry by picking up moisture from
  the ground. No moisture, No Clouds, No Rain, No
  Shade
• Most of the Plants and Animals that live in the
  Sahara are found near oases (an isolated location
  where water is found in a desert).

4
The Sahel

• The Sahel is the region on the southern border of
  the Sahara.
• Even though the Sahel receives more rain than the
  Sahara, it still suffers from regular droughts.
• Farming the Sahel is difficult, and those who try
  barely survive.
• The Sahel has recently been impacted by
  desertification, a process in which an area
  becomes increasingly dry.

5
The Desert Landscape

• In just a single afternoon, a traveler in the
  Sahara
• could see pink and yellow dunes, blue craggy
• cliffs, black volcanic rubble an eroded gulch,
  two
• dry rivers, a cone, a canyon, and many badlands
• barren hills.
• There are 3 basic desert landforms
• Ergs great seas of sand with tall sand dunes
• Regs gravel-covered plains
• Hammadas high, rock-covered flatlands
• If they are lucky, an occasional desert traveler
  might stumble across an oasis. An oasis is an
  island of fresh water in the dry sea of sand and
  rock. Oases are usually formed by underground
  springs, and allow life to exist in this harsh
  environment.

6
The Desert Climate

• Temperatures in the Desert can very greatly,
  often soaring above 100F during the day and
  sometimes dropping below freezing at night.
• A desert is home to harsh sandstorms and scarce
  and unpredictable rainfall.
• Plants and animals learn to adapt to these
  conditions. For example, some plants sprout
  rapidly after a rain and then set seed and die.
  The seeds then wait, sometimes even years, for
  the next rainfall.

7
Desertification

• Desertification (the process by which land
  becomes more and more dry until it turns into
  desert) is a pressing issue in the Sahel region.
• There are 2 major causes of Desertification in
  the Sahel
• A long string of back-to-back droughts have
  devastated the Sahel, and the meager rainfal has
  not been enough to recover the land.
• Farmers in the Sahel have begun to raise cash
  crops, like peanuts, which often wear out the
  soil faster than traditional crops.

4800- 5700